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3.2 Use of amount of substance in relation to masses of pure substances

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Question 36

A gas mixture contains 0.40 mol of O2\text{O}_2O2​ and 0.30 mol of CO2\text{CO}_2CO2​. The relative atomic masses (ArA_rAr​) of carbon and oxygen are 12 and 16.

Calculate the total mass of the gases in the mixture.

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3.2 Use of amount of substance in relation to masses of pure substances Questions

  1. GCSE
  2. /Chemistry
  3. /3.2 Use of amount of substance in relation to masses of pure substances

131 exam-style questions on AQA GCSE Chemistry 3.2 Use of amount of substance in relation to masses of pure substances, covering 3.2.1 Moles, 3.2.2 Amounts of substances in equations, 3.2.3 Using moles to balance equations, 3.2.4 Limiting reactants, 3.2.5a Concentration of solutions, and 3.2.5b Relating mass, volume and concentration. Each one has a worked solution and a mark scheme showing where the marks go.

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